Car-starting device.



No. 793.338. PATENTED JUNE 27,1905.

A. WYSS-BAUMGARTNER & R. MART OARSTARTING DEVICE.

APPLICATION FILED SEPT. 26, 1904.

2 SHEETSSHIIET 1.

No. 793,338. PATENTED JUNE 27, 1905. A. WYSS-BAUMGARTNER & R. MARTI'.

GAR STARTING DEVICE.

APPLICATION FILED SEPT. 26, 1904.

2 SHEETS-SHEET 2.

UNITED STATES Patented June 27, 1905.

PATENT OFFICE.

ALFRED \VYSS-BAUMGARTNER AND ROBERT MARTI, OF SOLOTHURN, S\\' l T ZERLAN D.

CAR-STARTING DEVICE.

SPECIFICATION forming part of Letters Patent No. 793,338, dated June 2'2, 1905.

Application filed September 26, 1904. Serial No. 226,039.

To all IU/t/Hlb if may concern:

Be it known that we, Amman \VYssBAUM- run'rxnn, and ROBERT Mama, citizens of the Swiss Confederation, and residents of Solothurn,Switzerlanddiaveinvented new and useful improvements in Car-Starting Devices, of which the following is a specification.

The present invention relates to improvements in a device for starting railway-vehicles and the like in which the starting device automatically follows the car-wheel.

The object of the improvement is to provide a starting device which when actuated not only will turn the car-wheel, but which is simultanermsly and positively advanced, acting thereby as a wedge between the car-wheel and track, and the same device serves at the same time as a drag when not actuated.

In the accompanying drawings, the carstarting device is shown in Figure 1 in a side view; Fig. 2, in a front view. Figs. and at show modified constructions of the starting device.

The starting device, as shown in Figs. 1 and 2, consists of a frame built up of two shields a 1/. The frame is supported by two rollers c, rotatably mounted on bolts 7), interconnecting the shields r! of the frame. The rollers 0 have flanges, so that the starting device is securely guided upon the head of the rail (Z. In the frame a third wheel f is rotatably mounted, which consists of two disks f and a ratchet-wheel f between the same. The periphery of the disks f are roughened, and they engage on the one hand the grooves 0, cut into the guide-rollers c, and on the other hand they act upon the tire of the car-wheel when the device is in operation. A hand-lever /I, pivoted to the axle of spindler of wheel f, is provided with a pawl g, which engages the ratchet-wheel f.

If a car is to be started, the device is pushed against the wheel, so that the roughened disks f act upon the tire. TV hen the hand-lever /i.

is pressed down, the pawl engages ratchetwheel f and the disksf", as well as the guiderollers r, are rotated, the latter being taken along by friction.

The arrangement of the different parts of the starting device is such that a tangent on a cycloid generated by a point of the car-tire, tangent as well as cycloid passing through the pointof contact between disks f and car-tire, will intersect the axle of the wheelf' or pass near the same. A rotation of wheel ,7" therefore does not only result in a turning movement of the car-wheel, but the whole deviceis advanced against the wheel. By lifting the hand-lever /1. the starting device serves as a drag, the weight of the car acting on wheel f tending to advance or at least to secure the drag.

According to the construction in Fig. 3 only one roughened disk f is used and the guiderollers have only one groove each. 'lheratehet-wheel f" and pawl are arranged at the side.

Fig. a shows a construction of the starting device with which the operator can work from the side of the car. In the frame m, which supports the rollers n 0., a shaft is rotatably mounted. Rotation is given to the shaft 7) by means of a pair of bevel-wheels g r and a crank .v, and the rotation is transmitted to the wheel f by a universal joint of known construction.

There are two flanges on the guide-rollers so that the starting device can be used with rails sunk into the ground.

'Having fully described our invention, what we claim, and desire to secure by Letters .Patout, is

1. .In car-starting devices the arrangement of the guide-rollers c and the shifting-wheel f in such a manner that a rotation of the latter positively advances the guide-rollers a, substantially as described and shown.

2. A car-starting device comprising in combination a pair of guide-wheels rotatably mounted in a frame, a shifting-wheel rotatably mounted in said frame having a roughened periphery and engaging both guide-wheels, a ratchet-w heel attached to the shifting-wheel, a pawl engaging said ratchet-wheel, a handlever carrying the pawl and pivoted to the axle of the shifting-wheel substantially as i described and shown and for the purpose set l forth.

3. Acar-startingdevicecomprising in comtion by a crank, substantially as described bination a pair of guide- Wheels rotatably and shown and for the purpose set forth. mounted inafrarne, a shifting-Wheel rotatably In testimony whereof We have hereunto set mounted in said frame having a roughened our hands in presence of tWo subscribing Wit- 5 S periphery and engaging both guide-Wheels, ncsses.

a ratchet-Wheel attached to the shifting-Wheel, a pawl engaging said ratchet-Wheel, a handlever carrying the pawl and pivoted to the axle of the shifting-Wheel, a shaft mounted Witnesses: I in said frame connected to the axle of shift- A. LIEBERKNECHT,

ing-Wheel and provided with means for rota- OTTO HERESHEIM.

ALFRED WYSS-BAUMGARTNER. ROBERT MARTI. 

